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Next century challenges: scalable coordination in sensor networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Proceedings of the 7th annual international conference on Mobile computing and networking
Exposure in wireless Ad-Hoc sensor networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Dynamic fine-grained localization in Ad-Hoc networks of sensors
Proceedings of the 7th annual international conference on Mobile computing and networking
Robust Positioning Algorithms for Distributed Ad-Hoc Wireless Sensor Networks
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Distributed localization using noisy distance and angle information
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IROS'09 Proceedings of the 2009 IEEE/RSJ international conference on Intelligent robots and systems
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GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
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MELT'09 Proceedings of the 2nd international conference on Mobile entity localization and tracking in GPS-less environments
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INFOCOM'10 Proceedings of the 29th conference on Information communications
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DCOSS'05 Proceedings of the First IEEE international conference on Distributed Computing in Sensor Systems
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ADCONS'11 Proceedings of the 2011 international conference on Advanced Computing, Networking and Security
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Ad Hoc Networks
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The recent advances in MEMS, embedded systems and wireless communication technologies are making the realization and deployment of networked wireless microsensors a tangible task. In this paper we study node localization, a component technology that would enhance the effectiveness and capabilities of this new class of networks. The n-hop multilateration primitive presented here, enables ad-hoc deployed sensor nodes to accurately estimate their locations by using known beacon locations that are several hops away and distance measurements to neighboring nodes. To prevent error accumulation in the network, node locations are computed by setting up and solving a global non-linear optimization problem. The solution is presented in two computation models, centralized and a fully distributed approximation of the centralized model. Our simulation results show that using the fully distributed model, resource constrained sensor nodes can collectively solve a large non-linear optimization problem that none of the nodes can solve individually. This approach results in significant savings in computation and communication, that allows fine-grained localization to run on a low cost sensor node we have developed.